Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 18, Problem 5PP
In an R-L parallel circuit,
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3. A Si step junction maintained at room temperature under equilibrium conditions has a p-side doping of
NA=2X1015/cm³ and an n-side doping of ND=1015/cm³. Compare
a) Vbi
b) xp, Xn, and W
c) ɛ at x=0
d) V at x=0
Make sketches that are roughly to scale of the charge density, electric field, and electrostatic
potential as a function of position.
4. Repeat problem 3, taking NA=10¹7/ cm³ to be the p-side doping. Briefly compare the results here with
those of problem 3.
The p-i-n diode shown schematically in Fig 5 is a three-region device with a middle region that is
intrinsic and relatively narrow. Assuming the p and n regions to be uniformly doped and ND-NA=0 in
the i-region.
a) Roughly sketch the expected charge density, electric field, and electrostatic potential inside the
device. Also draw the energy band diagram for the device under equilibrium conditions.
b) What is the built-in voltage drop between the p and n regions?
Consider the p1-p2 "isotype" step junction shown in Figure 2.
a) Draw the equilibrium energy band diagram for the junction, taking the doping to be non
degenerate and NA1 > NA2
b) Derive an expression for the built-in voltage (Vыi) that exists across the junction under
equilibrium conditions
c) Make rough sketches of the potential, electric field, and charge density inside the junction.
Chapter 18 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 18 - 1. When an inductor and a resistor are connected...Ch. 18 - 2. An inductor and resistor are connected in...Ch. 18 - 3. What is the impedance of the circuit in...Ch. 18 - 4. What is the power factor of the circuit in...Ch. 18 - How many degrees out of phase are the current and...Ch. 18 - 6. In the circuit shown in Figure 18-1, the...Ch. 18 - 7. A resistor and an inductor are connected in...Ch. 18 - The R-L parallel circuit shown in Figure 18-1 has...Ch. 18 - The R-L parallel circuit shown in Figure 18-1 has...Ch. 18 - How many degrees out of phase are the total...
Ch. 18 - Incandescent lighting of 500 W is connected in...Ch. 18 - You are working on a residential heat pump. The...Ch. 18 - Assume that the circuit shown in Figure 18-1 is...Ch. 18 - Assume that the current flow through the resistor,...Ch. 18 - Assume that the circuit in Figure 18-1 has an...Ch. 18 - Assume that the circuit in Figure 18-1 has a power...Ch. 18 - In an R-L parallel circuit, R=240 and XL=360. Find...Ch. 18 - In an R-L parallel circuit, IT=0.25 amps, IR=0.125...Ch. 18 - In an R-L parallel circuit, ET=120 volts,...Ch. 18 - In an R-L parallel circuit, ET=48 volts, IT=0.25...Ch. 18 - In an R-L parallel circuit, ET=240 volts, R=560 R...Ch. 18 - In an R-L parallel circuit, ET=240 volts, R=560,...Ch. 18 - In an R-L parallel circuit, ET=208 volts, R=2.4k,...Ch. 18 - In an R-L parallel circuit, ET=480 volts, R=16,...Ch. 18 - In an R-L parallel circuit, IT=1.25 amps, R=1.2k,...Ch. 18 - In an R-L parallel circuit, true power =4.6 watts...Ch. 18 - An R-L parallel circuit is connected to 240 volts...Ch. 18 - An R-L parallel circuit has an applied voltage of...
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